Home / 579,115,911.40-868,673,867.10-349,344,442.60

Finding the Fourth Proportional to 579,115,911.40, 868,673,867.10 and 349,344,442.60

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Solution

The fourth proportional to 579,115,911.40, 868,673,867.10 and 349,344,442.60 is: 524,016,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,115,911.40 : 868,673,867.10 = 349,344,442.60 : x
  2. Step 2: Convert to fraction form
    579,115,911.40/868,673,867.10 = 349,344,442.60/x
  3. Step 3: Cross multiply
    579,115,911.40x = 868,673,867.10 × 349,344,442.60
  4. Step 4: Simplify right side
    579,115,911.40x = 303,466,387,903,236,032
  5. Step 5: Solve for x
    x = 303,466,387,903,236,032/579,115,911.40
  6. Step 6: Final answer
    x = 524,016,663.90

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.